fraser



(No Model.)

H. L. FRASER.

2 Sheets-Sheet 1.

SNOW PLOW.

No. 394,350. l Pateted Deo. 11, 1888.

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WIT/VESSES:

ATTORNEY.

UNITED STATES PATENT OFFICE.

HARRIET LAVINIA FRASER, OF NEv YORK, N. Y.

SNOW-PLOW.

SPECIFICATION forming part of Letters Patent No. 394,350, dated December11, 1888.

Application filed May 4, 1888. Serial No. 272,812. (No model.)

.To all whom t may concern:

Be it known that I, HARRIET LAVINIA FRA- SER, of the city, county, andState ot' New York, have invented a new and Improved Snow-Plow, of whichthe following is a t'ull, clear, and exact description.

The object oi the invention is to provide a new and improved snow-plow,which is sim ple and durable in construction and very ef fectivelyremoves the snow from railroad tracks.

The invention consists of certain parts and details and combinations ofthe same, as will be fully described hereinafter, and then pointed outin the claims.

Reference to be had to the accompanying' drawings, formingI a part ot'this specification, in which similar letters of reference indicatecorresponding' parts in all the figures.

Figure l a longitudinal sectional elevation of the in'iprtwement asapplied. Fig. 2 is a perspective view of the middle section of thesnow-plow, parts being' broken out. 3 is an end elevation ot' theimprovement, and Fig. 4 is a perspective view ot a detail.

The improved snow-plow A is provided with a vertical frame, l, on whichare pivoted the rods C and C, each having at its end a hook, C2, adaptedto pass into a bearing', 1),secured in front of the locomotive I), whichserves to push the snow-plow into the snow drift or bank on therailroad-track. Onv the lower end of the trame l5 are mounted to rotatethe wheels .l, traveling' onV the t1.'ack-rails, and from the t'ront ot'the said frame B project the rods E', on which are mounted the wheelsE2, held in front oli' the wheels E, and also adapted to travel on thetrack-rails.

The frame B supports at its front the three plow-sections F, G, and H,located one above the other and one in front ot' the other, as isplainly shown in Fig'. l. The lower section, F, is pivotally connectedwith the frame B and is supported on the axle of the front wheels, E2.The middle section, G, is pivotally connected with the lower section, F,by rods or stays I, and the upper section, ll, is similarly connectedwith the middle section, G, by rods or stays J. 'l' he middle and uppersections, G and H, are also pivotally connected with the horizontal rodsK K, respectively, each provided at its inner end with the two prongs K2and K, extending in opposite directions, and of which the upper prong,K2, is adapted to rest against the frame B, while the lower prong, K2,is curved and held in a socket, K4, secured to the side of the frame B.This socket K4 is shaped similarly to the prong` K3 and permits aswinging' motion of the re spective rod, K or K.

Instead ot' making the socket K4 as shown in Fig. l. it may be formed asshown in Fig. f-t, in which `it consists of the bracket- K5, secured tothe frame B, and of the curved arm K6, pivoted on the said bracket K5.The curved arm K corresponds in shape with the prong K3 and turns withthe latter when the rod K or K swings up or down. The upward movement ofthesaid rods K or K is limited, however, by the prongl K2 resting'against the frame B, as shown in Fig'. l.

The upper section, H, is connected near its rear end with the chainsL,t'ro1n which eX- tend the branch chains L connected with the middlesection, G. The chains L run upward and pass over the pulleys L2,mounted in the upper end of a frame, N, mounted to slide vertically inthe bearings li and B2, Yformed on the frame B. Bolts N are secured tothe frame B and project through vertical slots N3, formed in the saidframe N, and nuts N2 screw on the outer ends of the said bolts N andagainst the said trame N, so as to fasten the latter to the verticalframe .B at any desired place. The cha-ins L pass downward from thepulleys L2 and are wound upon the drum O of a windlass,O,held on theinside of the frame B, being' of any approved construction. By operatingthe windlass O the chains'L are wound upon and unwound `from .the saiddrum O, and the plow-sections H and G are raised or loweredcorrespondingly.

Each plow-section F, G, or H consists, principally, ot' two parts unitedin their middle by bolts or other suitable means, as shown in Fig'. 2.Each section consists of the lower lianges, F, G, O1' H', which continueinto the rearwardly and upwardly extending' parts F2, G2, and H2, fromwhich extend the rearwardly and upwardly projecting tops F3, G3, and H3,respectively. The three parts of each section are V-shaped, having theirpoints in the front and their sides extending rearwardly, as is plainlyshown in Fig'. 2. Each IOO plow-section F, G, or His made hollow, so asto form a steam-space, P, into which steam is admitted from thelocomotive D, so as to melt the snow passing on top of the respectivesections F, G, and H. The locomotive is provided for this purpose with apipe, Q, extending in front of the boiler and provided with a valve,

Q', for admitting or shutting oit the steam from the front end ot thesaid pipe Q..

1o latter is connected at its front end by a tl'exible hose, P', withthe steam-space P of the middle snow-plow section, G, and the latter isconnected by iiexible hose P2 or with the steam-spaces P of the upper"snow-plow, H,

and the lower plowseetion, F, respectively, as

shown in Figs. l, 2, and 'lhemiddle part of each plow-section may beprovided on its sides with V-shaped ridges G", as shown in Fig'. 2.

zo The operation is as follows: The main frame B, Vsupportingl theseveral plow-sections F, G,

and H, is connected by the rods C and C to r the front of the locomotiveD, which, when set in motion, pushes the snow-plow into the snow- 2 5dritt on the railroad-track, whereby the several sections F, G, and Henter the snow in such a manner that the upper section, H,

pushes t-he top layer of the snow-drift to the side of therailroad-track, after which thesec- 3o ond section, G, comes in contactwith the middle part of the snow-drift and pushes it to the side, afterwhich the lower section, F, takes the remaining` part of the snowandpushes 4it to the side of the track. Thus the several 3 5 layers ot'snow in the snow-dritt are successively removed, commencing with the topc layer, so that the several sections work successively, each removingits respective layer of snow. Part of the snow passing,` from the sev-4o eral sections is melted by the steam in the steam-spaces. rl`he steamheats the plow-sections,and hence causes the latter to enter easily intohard-packed snow. It' the snow-drift is not very high, the lower andmiddle sections,

F andv G, respectively, come into use. Then the sn o\ 7-dritt is very high, the upper section,

H, will also act on the snow, as above de' scribed. The several sectionscan be raised and lowered by actuating` the windlass O, so 5o as to windthe chains L on the drum'Oor unwind them from the same. lVh en thechains Il are unwound from the drum O', the sections H and G swingdownward and forward on the stays I and J. This is done in case thesnowdrift is not high and the operatordesires to bring' the threesections into activity.

, It will be seen that the sections F, G, and H enter the snow-driftvery easily, as the respective flanges F, G, and H are long` and 6osharp in front, so that the snow easily passes up onto the middle parts,F2, G2, and H2, whichVY deliver the snow to the sides of therailroadtrack. Part of the snow which passes over the middle parts, F2,G2, and H2, and on the tops, F2, G2, and H2, is also delivered by thesame to the sides of the track, on account of extending` upward andrearward and to the The v sides ot the track. The lower section, F,eitends but a short distance beyond the sides of the track-rails, asshown in Fig'. but the next section is somewhat wider, and the topsection, H, is still wider, as is plainly illustrated in the drawings.The several part-s of the plow can be easily taken apart anddisconnected from the locomotive and carried in the baggage-car if notneeded for the purpose indicated.

Having thus :fully described my invention, I claim as new and desire tosecure by Letters Patentl. In a snow-plow, the combination, with a framemounted to travel on a railroad-track, of section-plows F, G, and ll,piif'otally'held in front of the said trame one above the other and onein front of the other, substantially as shown and described.

2. In a snow-plow, the combination, with a frame mounted to tra-vel on arailroad-track, ot the section-plows F, G, and H, held in front of thesaid 'frame one above the other and one in front of the other, and armspivoted on the said frame and pivotally connected with the saidsection-plows, substantially as shown and described.

In a snow-plow, the combination, with a frame mounted to travel on arailroad-track, of the section-plows F, G, and H, held in front of thesaid frame one above the other and one in front of the other, armspivoted on the said frame and pivotally connected with the saidsection-plows, and chains connected with the upper two section-plows, Gand H, to raise and lower the same, substantially as shown anddescribed.

4. In a snow-plow, the combination, with a frame mounted to travel on arailroad-track, of the section-plows F, G, and H, held in front of thesaid frame one above the other and one in front of the other, armspivoted on the said frame and pivotally connected with the saidsection-plows, chains connected with the upper two section-plows, G andH, to raise and lower the same, and a windlass held on the said frameand adapted to wind up the said chains, substantially as shown anddescribed.

5. In a snow-plow, the combination, with a frame mounted to travel on arailroad-track, of the section-plows F, G, and H, held in front of thesaid frame one above the otherand one in front of the other, each of thesaid sectionplows being,` made hollow to form a steamspace, a steam-pipeconnected with one of the sections, and pipes connecting the saidsection with the other sections, substantially as shown and described.

G. In a snow-plow, the combination, with a frame mounted to travel onthe railroad-track, of the section-plows F, G, and H, held in front ofthe said frame one above the other and one in front of the other, eachoi the said section-plows being made hollow to form a steamspace, asteam-pipe connected with the middle plow-section, G, and ileXible pipesconnecting the several steam-spaces with each IOO IIO

other, substantially as shown and described.

7. In a snow-plow, the combination, with a frame mounted to travel onthe railroad-track, of the sectionplo\\'s F, G, and H, each providedwith a lower flange continuing` into the rearwardly and upwardlyextending middle part, which terminates in the rearwardly and upwardl)Textendin top, substantially as shown and described.

8. In a snow-plow, the combination, with the frame B, mouu ted to travelon a rail road-track, of the hollow section-plows F, G, and ll, held infront ot' the said frame one above the other and one in front of theother, the stays l and J, connect-ed with the said section-plows, andthe rods K an d K' ,pi votally conn ected with the said frame and withthe upper two sectionplows, G and ll, substantially as shown anddescribed.

9. In a snow-plow, the coinliinatiou, with the l rame B, mounted totravel on a railroad-track, of the hollow sectiou-plows F, G, and H,held in front of' the said lranle one above the other and one in frontof the other, the stays I and J, connected with the saidsection-1i)lows,the rods K and K', piviiitally connected with the saidframe and with the upper two section-plows, G and H, the chains L L',connected with the said upper section-plows, G and H, and a windlass, O,mounted on the said frame B and connected with the said chains,substantially as shown and described.

10. In a snow-plow, the combination, with the frame B, mounted to travelon a railroad-track, of the hollow sectionplows F, G, and H, held infront ot the said frame one above the other and one in front of theother, the stays I and J, connected with the said section-plows, therods K and K', pivotally connected with the said frame and with theupper two section plows, G and II, the chains L L', connected with theupper sectioirplows, G and H, the win dlass C), mounted on the saidframe B and connected with the said chains, and the frame N, heldvertically adjustable on the said frame B and provided with pulleys overwhich the said chains pass.

Il. LAVINIA FRASER.

lVitnesses:

JAMES F. SwANicK, JOHN L. HENNING.

